zieg-ler



(N o Model.) 2 Sheets-Sheet. 2.

E ZIEGLBR. Lime and Cement Kiln. Nn. 241,268. Patented-May 10,1881.

N4 PETERS, Phctu-Lhhogmgher. Washington, D. C,

UNrTED STATES PATENT EEICE.

RNST ZIEGLER, OF HEILBRNN-ON-NEGKAR, GERMANY.

LIME AND CEMENT KILN.

SPECIFICATION forming part of Letters Patent No. 241,268, dated May 10, 1881.

Application filed September 6, 18R0.

To all whom it may concern.-

Be it known that I, RNST ZIEQLER, ot' Heilhronn-on-Neckar, Viirtemberg, in the Empire of Germany, have invented an Improvement in Lime and Cement Kilns, (for which I have received German Letters Patent, No. 9,123, for fteen years, dated July 29, 187 9,) of which the following is a specification.

Figure 1 is a central vertical section of my improved lime or cement kiln. Fig.2 is a horizontal section of the same 011 line c c, Fig. 1. Fig. 3 is a central vertical section of a modification of the same, Fig. 4, a horizontal section thereof 011 the line 7c lr, Fig. 3. Fig'. 5 is a central vertical section ot' still another modification thereof. Fig. 6 is a horizontal section thereof on line c 7c, Fig. 5.

This invention relates to a new lime or cement kiln which contains a steam-generator, so that the heat ordinarily required in such kilns will also be utilized to generate steam, which is used to assist in discharging the carbonicacid gas from the glowing or burning` lime or cement.

In the drawings, A is the body of the kiln. B B are the grate and fuel chambers; C O, the outlet-openings for the discharge of the lime or cement; D, the top opening of shaft. E is the chimney. F F are the steam-generators, ofsuitableconstruction. Theyareeitherplaced over the fire-chamber, as in Figs. 3 and 4, or over the openings C, as in Figs. 1 and2, or

(No model.) Patented in Germany July E29, 1879.

one such generator, of' annular orother form, may be placed in the upper part of the furnace, as in Figs. 5 and 6. In either case the said generators are built into the furnace, exposed to lthe heat therein produced, and capable of utilizing part of said heat for generating steam, which is conducted, through suitable pipes G, from said generator into nozzles a a, that are placed into the chimney to increase the draft. Other pipes may lead from said generators under the grates to carry steam to the fire for assisting in the combustion of the fuel, and a pipe may also bc conducted into the lower part of the furnace to carry steam to the lime or cement as a blast, or for rarefying the air.

I claim- The lime or cement furnace A, combined and provided with one or more steam-generators, F, that are built into said furnace and heated by the same, and with pipes Gr leading from said generators, and with nozzles a,into which 

